public class Dog {
    public String name;
    public int age;
    public String variety;


    public void bark(){
        System.out.println(name + "正在汪汪叫！！！");
    }

    public void wagTail(){
        System.out.println(name + "正在摇尾巴！！！");
    }

    public static void main(String[] args) {
        Dog d1 = new Dog();

        Dog d2 = new Dog();
    }
}

